Police are yet to identify a woman who was rescued from the lake at the University of East Anglia on Wednesday.

A Norfolk police spokesperson said no one had come forward to identify the woman and she remained in a critical condition in the Norfolk and Norwich University Hospital.

Emergency services were called to the scene at about 2.40pm on Wednesday following concerns for the safety of the woman who was seen to have entered the lake.

After being rescued she was airlifted to Norfolk and Norwich University Hospital where she was in a critical condition.

Her identity remained a mystery leading to a police appeal for anyone who may know her to come forward.

A police spokesman said: 'No personal belongings, other than a key attached to a red Cath Kidston key ring, have been found and despite carrying out a number of enquiries, efforts to identify the woman have been unsuccessful.'

She is described as aged in her 40s or 50s, of medium build, with short dark greying hair.

She was wearing dark blue jeans, with a brown leather belt, a grey long-sleeved top with a sequin pattern on the front, a white or cream faux fur front button coat and brown laced ankle boots.

Anyone with information should call Norwich CID on 101.